Queries Log Required
Dear all, We want to extend *LSQ: The Linked SPARQL Queries Dataset [1,2] *presented at ISWC 2015 by adding more queries. To this end, we are currently collecting query logs from different domains and endpoints. Your help in this endeavour would be highly appreciated. We'll be more than happy to provide you with the detailed results of the study if you contribute. [1] http://svn.aksw.org/papers/2015/ISWC_LSQ/public.pdf [2] http://aksw.github.io/LSQ/ Best Regards, The LSQ Team, Muhammad Saleem <https://sites.google.com/site/saleemsweb/> Intizar Ali <http://www.intizarali.org/> Qaiser Mehmood <https://www.insight-centre.org/users/qaiser-mehmood> Aidan Hogan <http://aidanhogan.com/> Axel-Cyrille Ngonga Ngomo <http://aksw.org/AxelNgonga.html> Carlos Buil Aranda <http://carlosbuil.com/> Michel Dumontier <http://dumontierlab.stanford.edu/>
Research Assistant/Associate Position at QCRI
*Aologies for cross posting* The Qatar Computing Research Institute (QCRI) is seeking candidates for a research assistant/associate position to work in the Distributed Systems group in the area of decentralized social web applications. We are searching for an outstanding web/mobile developer with some experience with web backends. You will be working on the Crosscloud project, which is a joint project with Tim Berners lee and his Decentralized Information Group at MIT CSAIL. Crosscloud is an architecture for social Web applications that is decentralized, and in which user's data is managed independently of the applications that create and consume it. You will be responsible for developing innovative and reusable web and mobile applications using the Crosscloud architecture, and working on improving the backends that support Crosscloud. One research assistant/associate position (up to 1 year appointment, renewable to 2 years) is available with Dr. Essam Mansour. The ideal candidate should have: - A BS or MSc in computer science or a related field. - Frontend development experience with HTML/XHTML, Javascript (pref. Angular), and CSS. - Backend development experience with Java or Node.js. - Experience working with remote data via REST and JSON. - Semantic Web experience (RDF, SPARQL, OWL, XML). - Experience with Android SDK. - Experience in Linux and scripting. QCRI is a national research institute conducting world-class applied computing research in several areas of computer science. QCRI offers a unique opportunity for starting a strong career, an attractive tax-free salary and benefits package. QCRI is located in Doha, a cosmopolitan city with well developed infrastructure, impressive recreation and entertainment options, and easy travel to all major destinations in the world. Further information about QCRI can be found at http://qcri.qa/. Interested applicants should submit a cover letter along with a curriculum vitae detailing their educational background and development experience to Dr. Essam Mansour (emansour AT qf.org.qa). Please include research assistant/associate application in the subject line. Best, Saleem Muhammad https://sites.google.com/site/saleemsweb/ AKSW http://aksw.org/About.html, Germany
Query Logs Required
Dear all, We want to study the effect of queries on SPARQL endpoints. To this end, we are currently collecting query logs from different domains and endpoints. Your help in this endeavour would be highly appreciated. We'll be more than happy to provide you with the detailed results of the study if you contribute. Best, Axel, Saleem AKSW, University of Leipzig, Germany http://aksw.org/About.html
Re: Updated LOD Cloud Diagram - Please enter your linked datasets into the datahub.io catalog for inclusion.
Hi Chris, Just wondering our 20.4 billion triples Linked TCGA dataset ( http://datahub.io/dataset/linked-tcga, http://tcga.deri.ie/) is yet not part of the updated LOD cloud diagram. Best, Muhammad Saleem PhD student AKSW, University of Leipzig, Germany URL: https://sites.google.com/site/saleemsweb/ Skype: saleem.muhammd On Mon, Aug 11, 2014 at 2:03 PM, Ivan Herman i...@w3.org wrote: Chris, could you replace, in the header of the SVG version: http://data.dws.informatik.uni-mannheim.de/lodcloud/2014/ISWC-RDB/LODCloudDiagram.svg the width and height attributes by viewBox=0 0 3490 2161 by doing this the diagram becomes scalable on the Web... Thanks Ivan Herman, W3C Home: http://www.w3.org/People/Ivan/ mobile: +31-641044153 GPG: 0x343F1A3D WebID: http://www.ivan-herman.net/foaf#me
Re: What happened to my trusted Turtle validator and converter?
You may try http://www.w3.org/RDF/Validator. Best, Muhammad Saleem PhD student AKSW, University of Leipzig, Germany URL: https://sites.google.com/site/saleemsweb/ Skype: saleem.muhammd On Sun, Apr 27, 2014 at 5:35 PM, Martynas Jusevičius marty...@graphity.orgwrote: Oh noes :( I was using it all the time as well. Martynas graphityhq.com On Apr 27, 2014 5:23 PM, Frans Knibbe | Geodan frans.kni...@geodan.nl wrote: Hi! I really liked the RDF validator and converter at http://www.rdfabout.com/demo/validator/. I used it often to validate the Turtle I wrote and sometimes I used it to convert Turtle to RDF/XML. So I was on the verge of being shocked when I noticed that it was gone from the web. Yesterday I got a HTTP error and today I am redirected to a blog about RDF. What has happened to the validator? Will it be back? Is there an alternative somewhere? Regards, Frans -- Frans Knibbe Geodan President Kennedylaan 1 1079 MB Amsterdam (NL) T +31 (0)20 - 5711 347 E frans.kni...@geodan.nl www.geodan.nl | disclaimer http://www.geodan.nl/disclaimer --
Re: Linked Data Fragments: Web-scale querying
Hi all, An interesting discussion!!!. A good overview and a fine-grained experimental evaluation of SPARQL query federation approaches presented in [1] might be of interest. [1] http://www.semantic-web-journal.net/system/files/swj625.pdf. Best, Muhammad Saleem PhD student AKSW, University of Leipzig, Germany URL: https://sites.google.com/site/saleemsweb/ Skype: saleem.muhammd On Wed, Mar 19, 2014 at 3:03 PM, Olaf Hartig ohar...@uwaterloo.ca wrote: Hi Martynas, On Wednesday 19 March 2014 12:58:15 Martynas Jusevičius wrote: Ruben, interesting stuff. I remember another project that does something like that: SQUIN http://squin.sourceforge.net/index.shtml SQUIN implements a traversal-based query execution strategy that relies only on the Linked Data publishing principles (i.e., the possibility to look up HTTP URIs). Query processing approaches that have this property are typically referred to as Linked Data query processing. If you want to get an overview on these approaches, you may want to check out my recent survey [1]. How does LDF compare to to it? I understand LDF more as an alternative practice for publishing (Linked) data on the Web. However, the primary purpose for proposing this practice (as Ruben and his colleagues emphasize in their LDOW paper) his to facilitate distributed querying without putting most of the burden on the servers. So, the primary difference between querying LDFs and the aforementioned Linked Data query processing is that querying LDFs is a form of distributed query processing, that is, some part of the execution of a given user query is distributed to LDF servers (which provide a limited form of query processing functionality). In contrast, Linked Data query processing is _not_ a form of distributed query processing. Instead, for Linked Data query processing approaches, the whole execution of a query happens within the Linked Data query processing system (e.g., SQUIN), simply because these approaches do not assume / rely on server-side query processing functionality (servers in this setting are only required to answer URI lookup requests). Cheers, Olaf [1] Olaf Hartig: An Overview on Execution Strategies for Linked Data Queries. In Datenbankspektrum, 13(2) Jul. 2013. http://olafhartig.de/files/Hartig_LDQueryExec_DBSpektrum2013_Preprint.pdf Thanks, Martynas graphityhq.com - snip
Linked TCGA Dataset is now Publicly Available
A good news for health care and life sciences domain. Linked Cancer Genome Atlas (Semantic Web Challenge-Big Data Track ISWC2013, Linked Data Cup I-Semantics2013 Winner) is now available at https://code.google.com/p/topfed/http://www.linkedin.com/redirect?url=https%3A%2F%2Fcode%2Egoogle%2Ecom%2Fp%2Ftopfed%2Furlhash=zFUx_t=tracking_anet. It is the largest (to the best of our knowledge) LOD data dump containing over 20 Billions triples for 26 cancer tumors with some other tumors data has to come. Further Information about Cancer Genome Atlas can be found at http://cancergenome.nih.gov/. -- Best, Saleem Skype: saleem.muhammd URL: https://sites.google.com/site/saleemsweb/
